Signal system.



No. 781,321. PATENTED JAN. 31, 1905.

[0. WHITE. SIGNAL SYSTEM. APPLICATION FILED FEB. 2, 1304.

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SIGNAL SYSTEM.

APPLIQATION FILED FEB. 2, 1904.

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UNITED STATES Patented January 31, 1905.

PATENT OFFICE. A

CLAUDE WHITE, OF ST. LOUIS; MISSOURI, ASSIGNOR OF ONE-HALF TO CHARLES T. NOLAND, OF ST. LOUIS, MISSOURI.

SIGNAL SYSTEM.

SPECIFICATION forming part of Letters Patent No. 781,321, dated January 31, 1905.

Application filed February 2, 1904. Serial No. 191,765. g i

To (I/ZZ whom it may concern:

Be it known that I, CLAUDE WHITE, a citizen of the United States, residing at Sh Louis, State of Missouri, have invented certain new and useful Improvements in Signal Systems, of which the following is a specification containing a full, clear, and exact description, ref

from the trainmen upon a running train 'between stations; and my improved signal system comprises a serles of stations arranged along the railway, each station being independently connected by two electric wires with the next station, both up and down the track, lights of contrasting colors connected to said wires, said wires being normally deenergized, a live wire extended along the railway, and means of connecting the deenergized wires to the live wires at any desired point, so as to send signals to or'from the trainmen upon a running train between stations.

tending to thenext stations up and down the 3 track being broken'away. Fig. 2 is a front elevation of a locomotive, showing a signal directed within the plane of vision of the engineer and other trainmen. Fig. 3 is a detail View, partly in elevation, partly in section, and partly in diagram, of a signal-post, a light upon the post, and the electrical connections. Referring to the drawings in detail, the wires 5 and 6 connect the lights 7 and 8 within the station 9 to the lights 10 and 11 within the station 12, and the wires 13 and 14 connect the lights 15 and 16 within the station 9 to similar lights in the'next station down the track, and the wires 17 and 18 connect the lights 19 and 20 within the station 12 to similar lights in the next station up the track.

- The generator 21 may be any source of electric power in the town in which the station 9 is located, and said generator is connected to the live wire 22, extending up the track from the station 9, and to the live wire 23, extending down the track from the station9, said generator also being connected to the switches 24 and 25 within the station 9, said switches being in turn connected to the wires 6 and 14, and said generator is also connected to the switches 26 and 27 within the station 9, said switches being in turn connected to the wires 5 and 13. The generator 28 may be any source of electric power in the town in which the station 12 is located, said generator being connected to the live wire22,

extending down the track from the station 12, and to the live wire 29, extending up the track from the station 12, and to the switches 30 and 31 within the station 12, said switches in turnbeing connected to the wires 6 and 18 and to the switches 32 and 33 within the station 12, said switches inturn being connected to the wires 5 and 17.

A series of switches 34, located between the stations 9 and 12, are adapted to connect the live wire 22 to the wire 6, and asimilar series of switches 35, located between the stations 9 and 12, are adapted to connect the live wire 22 to the wire 5. A series of red lights 36 is connected to the wire 6 between the stations 9 and 12, and a series of, white lights 37 is connected to the wire 5 between the stations 9 and 12. i v

A series of switches 38, located between the station 9 and the next station down the track, is adapted to connect the live wire 23 to the wire 14, carrying the series of red lights 39, and a similar series of switches 40 is adapted to'connect the live wire 23 to the wire 13, carrying the series of white lights 41. A series of switches42, located between the station 12 and the next station up-the track, is adapted to connect the live wire 29 to the wire 18, carrying the series of red lights 43, and a similar series of switches 44 is adapted to connect the live wire 29 to the wire 17 carrying the upon said posts, said light-fixtures comprising thesemi-oval shell 48, connected to the posts by the bracket 49. The light-fixtures 50 and 51 are connected to the base 52, said base 52 being secured in the apex of the shell 48, and the red light 36 is attached to the fixture 50, and the white light 37 is attached to the fixture 51. A reflector 53 is mounted in the shell 48 back of the lights, and a heavy concavo-convex glass plate 54% is placed in the open end of the shell, and the edge 55 of the shell is turned inwardly to hold the glass plate in position. The lights are mounted upon the posts upon a horizontal level with the plane of vision of the trainmen, so as to produce a concentrated shaft of light 56 across the path of the locomotive, so that as the locomotive passes along the track the shaft of light will strike the eyes of the engineer and fireman and also strike the eyes of the other trainmen and the passengers, thus attracting attention to the signals. A switch-box 57 is mounted upon each post 46, and the switches 34 and are mounted in this switch-box, the wire 22 leading to one side of each switch and the wires 5 and 6 leading from the other sides of said switches, respectively. The switch-boxes 57 are controlled by keys carried by the trainmen, so that the trainmen may stop at any point between the stations and by manipulating the switches 34 and 35 send signals along the track and to the stations 9 and 12.

The operation of the signals down the track from the station 9 and up the track from the station 12 is the same as that already descri bed. Ordinarily the red lights when operated from the station will indicate danger and stop the train and the white lights will indicate a clear track and allow the train to proceed. A code of signals may be arranged by which any other desired information may be communicated either to or from the trainmen.

I claim- In asignal system: aseries of stations; each station being paired with each adjacent station; a series of posts arranged along the railway between the stations; two electric wires strung on the posts between each pair of stations; a light at each end of each wire; lights on the posts connected to the wires and grounded; a live wire strung on the posts; and switches on the posts and at the stations, so that either series of lights may be illuminated from either end or from any switch upon any post; one series of lights being of a dili'erent color from the other series of lights; substantially as specified.

In testimony whereof I have signed my name to this specification in presence of two subscribing witnesses.

CLAU DE ll 1 TE.

Witnesses:

ALFRED A. EICKS, M. G. IRION. 

